Annual report pursuant to Section 13 and 15(d)

Share-based Compensation, Former Rexahn Options (Details)

v3.22.1
Share-based Compensation, Former Rexahn Options (Details) - Rexahn [Member] - $ / shares
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Nov. 05, 2020
Former Options [Abstract]      
Number of shares outstanding (in shares) 82 123 993
Number of options expired (in shares) 41    
Exercise price (in dollars per share) $ 182.40    
Average remaining contractual life 6 months